Duigu,Gabi. (2006). Essay writing for English test. HCM.: Tong hop.
Trích dẫn kiểu ChicagoDuigu,Gabi. Essay Writing for English Test. HCM.: Tong hop, 2006.
MLA引文Duigu,Gabi. Essay Writing for English Test. HCM.: Tong hop, 2006.
警告：這些引文格式不一定是100％准確.
APA引文